My male 9 mth old has a rounded belly last few days.he is eating,drinking, using bathroom, playing all fine, just round belly.no worms that I see,both my cats are indoor, no fleas,no change food. He has gas occasionally, but he kind of always has.I am concerned at what could be?don't wanna take him to vet unless sure he should go.husband lost his job few weeks back so funds tight right now.he's neutered,had all shots and tested - for leukemia.???